http://books.google.de/books?id=famvyE-XDSkC&pg=PA140&lpg=PA140&dq=Gottlieb+Wunschel&source=bl&ots=k9-gDqCeq2&sig=XnUzvSGM8itwM_SUpDiuE1zKuvM&hl=de&ei=JbJjToLFKJDLswbIrLSVCg&sa=X&oi=book_result&ct=result&resnum=8&ved=0CFAQ6AEwBw#v=onepage&q=Gottlieb%20Wunschel&f=false | http://books.google.de/books?id=famvyE-XDSkC&pg=PA140&lpg=PA140&dq=Gottlieb+Wunschel&source=bl&ots=k9-gDqCeq2&sig=XnUzvSGM8itwM_SUpDiuE1zKuvM&hl=de&ei=JbJjToLFKJDLswbIrLSVCg&sa=X&oi=book_result&ct=result&resnum=8&ved=0CFAQ6AEwBw#v=onepage&q=Gottlieb%20Wunschel&f=false |